682139650 has 24 divisors (see below), whose sum is σ = 1284074064. Its totient is φ = 269566800.

The previous prime is 682139629. The next prime is 682139687. The reversal of 682139650 is 56931286.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78036 + ... + 86335.

It is an arithmetic number, because the mean of its divisors is an integer number (53503086).

Almost surely, 2^682139650 is an apocalyptic number.

682139650 is a deficient number, since it is larger than the sum of its proper divisors (601934414).

682139650 is a wasteful number, since it uses less digits than its factorization.

682139650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164466 (or 164461 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 682139650 is about 26117.8033149804. The cubic root of 682139650 is about 880.2872899804.

The spelling of 682139650 in words is "six hundred eighty-two million, one hundred thirty-nine thousand, six hundred fifty".